[sim] Consistent support for C calls with up to 9 args

test/cctest/test-code-stub-assembler.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cmath>
 
 #include "src/api.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/builtins/builtins-promise-gen.h"
 #include "src/code-factory.h"
@@ skipping 10 matching lines @@
 
 using compiler::CodeAssemblerTester;
 using compiler::FunctionTester;
 using compiler::Node;
 using compiler::CodeAssemblerLabel;
 using compiler::CodeAssemblerVariable;
 using compiler::CodeAssemblerVariableList;
 
 namespace {
 
+int sum9(int a0, int a1, int a2, int a3, int a4, int a5, int a6, int a7,
+         int a8) {
+  return a0 + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8;
+}
+
+}  // namespace
+
+TEST(CallCFunction9) {
+  Isolate* isolate(CcTest::InitIsolateOnce());
+
+  const int kNumParams = 0;
+  CodeAssemblerTester data(isolate, kNumParams);
+  CodeStubAssembler m(data.state());
+
+  {
+    Node* const fun_constant = m.ExternalConstant(
+        ExternalReference(reinterpret_cast<Address>(sum9), isolate));
+
+    MachineType type_intptr = MachineType::IntPtr();
+
+    Node* const result = m.CallCFunction9(
+        type_intptr, type_intptr, type_intptr, type_intptr, type_intptr,
+        type_intptr, type_intptr, type_intptr, type_intptr, type_intptr,
+        fun_constant, m.IntPtrConstant(0), m.IntPtrConstant(1),
+        m.IntPtrConstant(2), m.IntPtrConstant(3), m.IntPtrConstant(4),
+        m.IntPtrConstant(5), m.IntPtrConstant(6), m.IntPtrConstant(7),
+        m.IntPtrConstant(8));
+    m.Return(m.SmiTag(result));
+  }
+
+  Handle<Code> code = data.GenerateCode();
+  FunctionTester ft(code, kNumParams);
+
+  Handle<Object> result = ft.Call().ToHandleChecked();
+  CHECK_EQ(36, Handle<Smi>::cast(result)->value());
+}
+
+namespace {
+
 void CheckToUint32Result(uint32_t expected, Handle<Object> result) {
   const int64_t result_int64 = NumberToInt64(*result);
   const uint32_t result_uint32 = NumberToUint32(*result);
 
   CHECK_EQ(static_cast<int64_t>(result_uint32), result_int64);
   CHECK_EQ(expected, result_uint32);
 
   // Ensure that the result is normalized to a Smi, i.e. a HeapNumber is only
   // returned if the result is not within Smi range.
   const bool expected_fits_into_intptr =
@@ skipping 2560 matching lines @@
   m.Return(m.SmiConstant(0));
 
   Handle<Code> code = data.GenerateCode();
   CHECK(!code.is_null());
   FunctionTester ft(code, kNumParams);
   CHECK_EQ(1, Handle<Smi>::cast(ft.Call().ToHandleChecked())->value());
 }
 
 }  // namespace internal
 }  // namespace v8